let fsExtra=require("fs-extra");
const fs=require("fs");
fsExtra.remove("case",(err)=>{
    console.log(err);
})

/*同步*/
let data=fs.readFileSync("./package.json");/*同步读取文件 需要等待*/
console.log(data.toString());
/*异步*/
/**
fs.readFile("./package.json",(err,data)=>{
    console.log(data.toString())
})
 */
